18038404002 has 8 divisors (see below), whose sum is σ = 36076808016. Its totient is φ = 6012801332.

The previous prime is 18038403961. The next prime is 18038404039. The reversal of 18038404002 is 20040483081.

It is a sphenic number, since it is the product of 3 distinct primes.

18038404002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503200328 + ... + 1503200339.

It is an arithmetic number, because the mean of its divisors is an integer number (4509601002).

Almost surely, 2^18038404002 is an apocalyptic number.

18038404002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18038404002 is a wasteful number, since it uses less digits than its factorization.

18038404002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006400672.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 18038404002 its reverse (20040483081), we get a palindrome (38078887083).

The spelling of 18038404002 in words is "eighteen billion, thirty-eight million, four hundred four thousand, two".